import React, { Component } from 'react';
import StorageUtils from '../Utils/StorageUtils'

export default class MathUtils extends React.Component
{

    static accAdd(arg1, arg2)
    {
        var r1, r2, m, c;
        try
        {
            r1 = arg1.toString().split(".")[1].length;
        }
        catch (e)
        {
            r1 = 0;
        }
        try
        {
            r2 = arg2.toString().split(".")[1].length;
        }
        catch (e)
        {
            r2 = 0;
        }
        c = Math.abs(r1 - r2);
        m = Math.pow(10, Math.max(r1, r2));
        if (c > 0)
        {
            var cm = Math.pow(10, c);
            if (r1 > r2)
            {
                arg1 = Number(arg1.toString().replace(".", ""));
                arg2 = Number(arg2.toString().replace(".", "")) * cm;
            } else
            {
                arg1 = Number(arg1.toString().replace(".", "")) * cm;
                arg2 = Number(arg2.toString().replace(".", ""));
            }
        } else
        {
            arg1 = Number(arg1.toString().replace(".", ""));
            arg2 = Number(arg2.toString().replace(".", ""));
        }
        return (arg1 + arg2) / m;
    }

    static accSub(arg1, arg2)
    {
        var r1, r2, m, n;
        try
        {
            r1 = arg1.toString().split(".")[1].length;
        }
        catch (e)
        {
            r1 = 0;
        }
        try
        {
            r2 = arg2.toString().split(".")[1].length;
        }
        catch (e)
        {
            r2 = 0;
        }
        m = Math.pow(10, Math.max(r1, r2)); //last modify by deeka //动态控制精度长度
        n = (r1 >= r2) ? r1 : r2;
        return ((arg1 * m - arg2 * m) / m).toFixed(n);
    }

    static accMul(arg1, arg2)
    {
        var m = 0, s1 = arg1.toString(), s2 = arg2.toString();
        try
        {
            m += s1.split(".")[1].length;
        }
        catch (e)
        {
        }
        try
        {
            m += s2.split(".")[1].length;
        }
        catch (e)
        {
        }
        return Number(s1.replace(".", "")) * Number(s2.replace(".", "")) / Math.pow(10, m);
    }
}
